baber/WOPTO huggingface dataset:
Patent GB-848864-A (GB)
Title: Improvements relating to the venting of oil-laden air from gas turbine engines
Inventor: ATKINSON ROBERT PRESCOTT
IPC: F01D25/18
Filed: 1958-11-13
Abstract: 848,864. Separating oil particles from air. GENERAL MOTORS CORPORATION. Nov. 13, 1958, No. 36623/58. Class 123(3) [Also in Group XXVI] Oil-laden air, which is slightly above atmospheric pressure in the upper part of an oil tank 56 in a lubrication system for a gas turbine aircraft engine, is vented through a pipe 64 and a port 66 to the forward end 12 of a hollow engine-power shaft 10 which accommodates a baffle-cap 22 for removing, from the vented air, the oil droplets which are returned to the tank 56. The baffle cap 22, fixed within the shaft 10, has a transverse wall 24 and a cylindrical wall 26 having radially inwardly-directed opposed pairs of tubes 28, 30 for delivering vented air, substantially free from oil, to the interior of the shaft 10. The vented air. passing through four parallel tubes 34 fixed by plates 32, 36 in an intermediate shaft section 14, enters a single air tube 44 which extends to the rear of the shaft 10 and has a number of radially outwardly-projecting discharge tubes 50 disposed to the rear of a rear turbine wheel 18. Ports 52 in a hub 54 for the wheel 18 lead the vented air to mix with the stream of exhaust gases from the engine. The lubrication system includes the tank 56 and a pump 62 for supplying oil to a pipe 38 which is arranged centrally within the shaft 10 and has, at spaced intervals, radially directed struts 48 with passages to convey lubricant to the various bearings, not shown. A conduit 58 returns scavenge oil to the tank.
Patent GB-183492-A (GB)
Title: Improvements in and relating to cameras
IPC: G03B17/44
Filed: 1921-09-12
Abstract: 183,492. Lewis, B. Sept. 12, 1921. Focusing-devices. - Relates to focusing-arrangements for focal-plane cameras of the kind in which the focal-plane shutter forms the focusing- screen and is viewed from the front. The invention consists in means for pressing and holding the shutter against the sensitive plate during focusing, and for releasing the pressing means simultaneously with the release of the shutteroperating mechanism to make the exposure. A rectangular wire frame 17, hinged at 19 inside the camera, is displaced by an external finger-lever 20, against the action of a spring 22, to press the shutter 15 backwards into contact with the sensitive plate 16, i.e. into or approximately into, the focal plane of the camera. In this position, the lever 20 is held by a spring trigger 23, and a pivoted spring catch 25 which it carries snaps over the hooked end of a spring pawl 26 engaging the pinion 27 of the upper blind roller. To make the exposure, the trigger 23 is lifted by hand, bulb, or Bowden wire. The spring 22 withdraws the frame 17 from the shutter, and the catch 25 withdraws the pawl 26 from the pinion 27, thus releasing the shutter.
Patent GB-1016120-A (GB)
Title: Improvements in or relating to bonding soles to shoe bottoms in the manufacture of shoes
IPC: A43D25/18
Filed: 1962-06-27
Abstract: 1,016,120. Boots &c. BOSTIK Ltd. June 27, 1962 [June 30, 1961 (2)], No. 36771/65. Divided out of 1,016,493. Drawings to Specification. Heading A3B. An outsole is provided around its margins with a layer of non-tacky adhesive which is solvent-free, and at least partially transparent to radiant heat, and is thermoplastic. If the outsole is made from rubber it may be coated with a primer before the adhesive is applied. In attaching the outsole to a shoe both the outsole and shoe bottom are heated, pressed together and allowed to cool. Specified adhesives are linear polyesters; polyesteramides, stereo-specific catalysed polymers of vinyl alkyl ethers, polymers and copolymers of alkyl acrylates and methacrylates and linear thermoplastic polyurethanes.
Patent GB-975762-A (GB)
Title: Improvements in or relating to magnetic character testing
Inventor: WILBY WILLIAM PETER LANHAM
IPC: G06V10/98
Filed: 1961-10-13
Abstract: 975,762. Testing characters for automatic reading. CROSFIELD ELECTRONICS Ltd. Oct. 8, 1962 [Oct. 13, 1961], No. 36849/61. Heading G4R. An instrument for testing the distribution or intensity of magnetic ink over a character comprises a rotatable member carrying an electromagnetic head which scans the character, the resultant waveform being displayed on a cathode ray tube for comparison with data derived from standard characters. The document carrying the character is placed face downwards on a platform 1 so that it is repeatedly magnetized by a permanent 7 and then scanned by the head 6 as the drum 3 rotates. The signals are taken off by sliprings and brushes 13, 14 and applied through a variable amplifier to the Y-plates of the C.R.T. Coil 19 generates a pulse during each revolution as the magnet 7 passes it. This pulse is used to trigger the timebase circuit of the C.R.T. The waveform is thereby displayed as a steady trace on the screen. Horizontal lines may be provided on the screen by which the amplitude of the waveform can be compared with standard amplitudes or the waveshapes of standard characters may be drawn on transparent screens to be placed in front of the displayed waveform. A lamp communicates with the character through bores 20 in the drum and the reflected image is displayed by a mirror and lens system for visual inspection. In a modification for testing characters on large webs the web is drawn by suction against the drum and the instrument is adjustable by means of a lead screw to the desired position across the web. If the ink is wet, the reverse side of the document may be sensed the standard waveforms being suitably modified for comparison. If the web is in motion each character is sensed only once and the waveform is displayed on a storage cathode ray tube.
Patent GB-1361859-A (GB)
Title: Preparation of oil-containing microcapsules
IPC: B41M5/165
Filed: 1971-08-05
Abstract: 1361859 Microcapsules FUJI PHOTO FILM CO Ltd 5 Aug 1971 [6 Aug 1970] 36875/71 Heading B8C Oil-containing microcapsules are prepared by dispersing the oil as droplets in an aqueous sol of gelatine and another hydrophilic colloid of opposite charge, causing coacervation of the colloid(s), e.g. by dilution or alteration of pH and subsequently gelling and hardening the coacervate capsule walls, a gelatine or gelatine derivative having a lower isoelectric point than that used for forming the coacervate being added as a "shock protecting" agent, before the hardening or "prehardening" step (i.e. raising the pH and adding a cross-linking agent such as formalin), at a temperature below the gelling point of the coacervated gelatine. Suitable gelatine derivatives are reaction products of gelatine with aromatic and aliphatic carboxylic acid anhydride or a compound containing a reactive halogen atom or an isocyanate. Numerous examples of suitable reactants are given and the preparation of derivatives of gelatine and:- m-carboxybenzene sulphochloride; maleic anhydride and phthalic anhydride are described.
Patent GB-370260-A (GB)
Abstract: 370,260. Warp pile fabrics. ANDREAE, F., NOELL, C., ANDREAE, F., ANDREAE, M., and ANDREAE, W., (trading as ANDREAE, C.), 30, Wallstrasse, M³lheim, Cologne, Germany. June 12, 1931, No. 17120. Convention date, March 28. [Class 142 (iv).] A velvet is woven with uncut loops a formed of overtwisted or crÛpe warp threads, preferably of silk or artificial silk, which when the fabric is dyed twist in spiral or corkscrew fashion as shown. Reference has been directed by the Comptroller to Specification 266,131, [Class 142 (iv), Woven fabrics &c.].
Patent GB-847687-A (GB)
Title: Improvements in or relating to pressure transmitters
IPC: G01L23/12
Filed: 1957-11-27
Abstract: 847,687. Pressure gauges; engine indicators. VYZKUMNIY USTAV NAFTOVYCH MOTORU, and WRANA, B. Nov. 27, 1957 [Dec. 4, 1956], No. 37044/57. Class 106 (2). [Also in Group XXXVIII] A pressure measuring device comprises a diaphragm, an abutment plate, and a valve between the two so that its movement is limited by the abutment plate. In Fig. 5 the pressure P 1  to be measured (e.g. in an engine cylinder) is opposed by a constant calibration pressure P 2  and if the latter is greater the valve 3 is pushed downwards to shut off the measuring pressure P 1 . When the measuring pressure becomes sufficient to lift the valve the diaphragm 1 can follow its variations. In Fig. 7 the valve 3 is clamped between the diaphragm and abutment 4, and the calibration pressure P 2  is admitted to the space above the diaphragm as well as to the top of the valve. Previously known devices for comparing measuring and calibration pressures are illustrated.
Patent GB-1441075-A (GB)
Title: Mixture of tetrahydrophthalic anhydrides and the process for obt aining same
IPC: C09K3/00
Filed: 1974-08-23
Abstract: 1441075 Curing epoxy resins SOC CHIMIQUE DES CHARBONNAGES 23 Aug 1974 [27 Aug 1973] 37125/74 Heading C3B [Also in Division C2] A mixture of endomethylene - tetrahydrophthalic anhydride, 4-methyl - tetrahydrophthalic anhydride and 3 - methyl - tetrahydrophthalic anhydride, having a melting point of between 40 and 60 C., obtained from a C 5  petrochemical fraction containing as reactant constituents cyclopentadiene, isoprene, and transpiperylene in substantially the same amount by weight together with other unsaturated C 5  hydrocarbons such as fractions derived from the steam cracking or pyrolysis of naphtha, by reacting the C 5  fraction in counterflow with melted maleic anhydride at a temperature of between 100 and 130 C., is used as a hardening agent for epoxy resins.
Patent GB-1364274-A (GB)
Title: Electrically controlled modulator systems with chromatic polari sation
IPC: G02F1/1333
Filed: 1971-08-06
Abstract: 1364274 Modulating light THOMSON CSF 6 Aug 1971 [7 Aug 1970] 37172/71 Heading H4F A device for continuously variably modulating the colour of a polychromatic light beam or the intensity of a monochromatic beam in response to an electrical control signal comprises a variably birefringent nematic liquid crystal cell between crossed polarizers, the nematic liquid crystal molecules being uniformly aligned both in the absence and presence of the signal. In a first embodiment, electrodes either side of the nematic layer apply a variable field thereacross to alter the direction alignment of the nematic molecules. To inhibit dynamic scattering, a dielectric layer may overlie one electrode. The electrodes may be shaped and the applied voltage may be variable amplitude D.C. or variable amplitude or frequency A.C. A.C. voltages also inhibit dynamic scattering. The uniform alignment may be imposed by the surfaces bounding the nematic layer so that the long axes lie parallel or approximately at 90 degrees to the plates bounding the layer. The axes should not lie exactly at 90 degrees to the plates. The plates may be scratched to impose a certain alignment direction on the nematic material. In a second embodiment, the plates are separated by piezo-electric transducers which are activated to alter the nematic film thickness or to alter the birefringence of the film via the applied stress. The latter mechanooptical effect is momentary and alternating operation is necessary. A monochromatic beam may be provided by a laser, or by using an interference filter.
Patent GB-1360830-A (GB)
Title: Inhibiting the thermopolymerization of isoprene and butadiene  in contact with ferrous metals
IPC: C07C7/10
Filed: 1971-08-07
Abstract: 1360830 Distilling hydrocarbons STERLITAMAXKY OPYTNO-PROMYSHLENNY ZAVOD PO PROIZVODSTVU IZOPRENOVOGO KAUCHUKA 7 Aug 1971 37215/71 Heading C5E The ferrous-metal internal surface of an apparatus for extractive rectification is passivated by treatment with an aqueous solution of a nitrite, sulphite, or phosphate of an alkali metal, before it is used in the extractive rectification of a mixture of hydrocarbons comprising isoprene or butadiene. This treatment reduces the effect of the metal in catalyzing thermal polymerization of the hydrocarbons. A further quantity of the passivating agent may be present in the extractive solvent which may be dimethylformamide, dimethylacetamide, or N-methylpyrrolidone, and may also contain other inhibitors or molecular-weight regulators, e.g. aliphatic or cyclic ketones, sodium fluoride, sodium rhodanide, α,α-dipyridyl, sulphur, diphenylamine, parahydroxydiphenylamine, betanaphthylamine, orthonitrophenol, aliphatic alcohols, nitroalcohols or aminoalcohols.
Patent GB-449552-A (GB)
Title: Improvements in prismatic binoculars
IPC: G02B23/18
Filed: 1934-12-29
Abstract: 449,552. Prismatic binoculars. BAKER, T. Y., Goldislie, South Hayling, Hampshire, and SUTTON, J. F., Admiralty Research Laboratory, Teddington, Middlesex. Dec. 29, 1934, No. 37230. [Class 97 (i)] In a prismatic binocular the prism system is held rigidly in a frame B detachable from the body of the binocular, the frame being fixed in the case by contact of the surfaces E<1> E<2> of a lug D with the points of two adjustable opposing screws F<1> F<2>, and by contact of V-grooves C in two separated members of the frame with an adjustable bar A. The system may be adjusted in position by the screws F<1> F<2> and by the bar A which may be rotated about an eccentric axis. The frame is held by pressure on a spring G of a boss H carried by the screwedon cover plate J.
Patent GB-1402284-A (GB)
Title: Automatic chemical analysis apparatus
IPC: G01N35/02
Filed: 1972-10-10
Abstract: 1402284 Sampling liquids COULTER ELECTRONICS Inc 10 Oct 1972 [14 Oct 1971 21 Oct 1971 10 April 1972 31 Aug 1972] 37287/74 Divided out of 1402283 Heading B8N [Also in Division G1] A sampling valve comprises first and second valve blocks 318, 320, block 320 being longitudinally slidable on (shorter) block 318 between a first sample aspirating position (Fig. 6) and a second position (Fig. 7A) in which a given amount of sample is flushed out of the valve by reagent, the sample being drawn through line 322 into sample loop 334 by application of suction by line 393, reagent simultaneously flowing through lines 345, 409 when the valve is in its first position, and the sample being dispensed through line 350 when the valve is in its second position, reagent then flowing from line 409 into the second valve block 318 and through (i) gallery 402, line 398 and the sample loop, and (ii) gallery 402 and "shunt gallery" 403 which is preferably of longer cross-section than the sample loop, the two streams meeting and mixing for flow out of the valve by line 350. The valve blocks are mounted between plates 364, (366) which are pivotable at 357 on a support post 362, the first valve block 318 being secured to the plates and the second valve block 320 being urged towards block 318 by a bar 378 pivotable at one of its ends on post 362 and at the other end or block 320, the sliding movement of block 320 on block 318 which is obtained on pivoting of the plates 364 (366) by actuation of air cylinder piston arrangement 326 being limited by engagement of end stops 358, 386 or block 320 with the ends of block 318. In another embodiment (Figs. 8, 9, not shown), a plurality of sampling valves is mounted along a horizontal cylindrical shaft which is pivotable about its long axis.
Patent GB-1387606-A (GB)
Title: Triazolobenzodiazepines
IPC: A23K1/16
Filed: 1972-08-10
Abstract: 1387606 Triazolobenzodiazepines UPJOHN CO 10 Aug 1972 [13 Sept 1971] 37315/72 Heading C2C Triazolobenzodiazepines are prepared by the following routes (R 1  = H, C 1-3  alkyl; R 2  = pyridyl, 2-pyrimidyl, furyl, pyrryl, thienyl, C 1-3  alkyl, C 2-3  alkenyl, C 5-7  cycloalkyl or cycloalkenyl; R 3,4  = H, halogen, CF 3 , NO 2 , C 1-3  alkoxy or alkylthio, di(C 1-3  alkyl)amino; X = Cl, Br; R<SP>1</SP> = C 1-3  alkyl; R<SP>11</SP>, R<SP>111</SP> = C 1-3  alkyl or NR<SP>11</SP>R<SP>111</SP> = pyrrolidino, piperidino, morpholino), optionally followed by salt formation at any stage. The above compounds are sedatives, hypnotics, anticonvulsants, tranquilizers and muscle relaxants and increase growth rate, feed efficiency and milk and egg yield of livestock. They may be administered in the form of pharmaceutical or veterinary preparations or food premixes containing them in association with a carrier.
Patent GB-954935-A (GB)
Title: Improvements to flexible dams, adjustable as to height
IPC: E02B7/00
Filed: 1961-10-18
Abstract: 954,935. Flexible dams. J. J. E. MESNAGER. Oct. 18, 1961 [Oct. 20, 1960], No. 37331/61. Heading E1H. A dam comprises an envelope 2 of flexible material, e.g. neoprene or rubber reinforced with steel wire, nylon or cotton, adapted to be inflated and to be secured to a sill 1 in a bed of a canal by clamps 4 acting on an internal bead 3 along the line S 1 , B 2 , C 2 , and S 2 , which is bent convexly in the upstream direction. The envelope is of approximately cylindrical form in the section B-C and of conical form at the ends S 1 -B, S 2 -C so that when in position and inflated folds are formed at B<SP>1</SP> and C<SP>1</SP>. To avoid the folds B<SP>1</SP> and C<SP>1</SP> the vertices S 1 , S 2  may be displaced down stream. The cylindrical section may be closed by a rounded end, the space between the ends and the sides of the canal being closed by walls. A passage may be provided for access to the inside of the envelope which may be closed by an air-lock.
Patent GB-1023111-A (GB)
Title: Improvements in or relating to electric switches
Inventor: DAY ALFRED JAMES
IPC: H01P1/12
Filed: 1962-10-02
Abstract: 1,023,111. Mechanical switches, without quick action. HOLDROMAN ENGINEERING CO. Ltd. and A. J. DAY. Oct. 25, 1963 [Oct. 2, 1962], No. 37369/62. Heading H2B. A switch for off-load switching of high-frequency power between a plurality of coaxial feeders comprises a square-section casing 5 having end plates 6 and 7 bolted thereon and coaxial sockets 1, 2, 3 and 4 fixed therein such that 1 is opposite 2 and 3 is opposite 4, but these pairs are mutually perpendicular and lie in displaced parallel planes. The fixed sockets have spring-loaded central conductors as in Fig. 6 (not shown), and pivoted between them on subframes 35 and 35<SP>1</SP> are rotors 9 and 10 respectively, which have T-shaped contact connectors as in Figs. 7a and 7b (not shown). A fixed coaxial link 8, similar to sockets 1 to 4, is provided between the frames 35 and 35<SP>1</SP> such that rotors 9 and 10 may be oriented for interconnection thereby. Rotors 9 and 10 are rotatable in unison by a shaft 15 which turns a bevel gear 17 on a shaft 18 to operate rotor 10 directly, and by means of a cranked connecting rod 19, 21 turns rotor 9 through the same angle. Thus " cross " connections between sockets 1 and 2 and 3 and 4 may be established, or, by 90 degrees rotation of shaft 15, socket 1 may be connected through link 8 to socket 3 (Figs. 4 and 5, not shown). A plurality of switches may be arranged in a matrix (Figs. 8a and 8b, not shown).
Patent GB-859128-A (GB)
Title: Improvements relating to seats, chairs, settees and the like
IPC: A47C7/22
Filed: 1957-12-02
Abstract: 859,128. Resilient surfaces. VARKALA, P. B. Jan. 15, 1959 [Dec. 2, 1957], No. 37539/57. Class 52(4) Spaced strips 10 or a wide sheet of resilient material forming the seat and back surfaces of a chair &c. are secured to the front rail 6 and top rail 3 and are slidably mounted in relation to the rear rail 7. Specifications 661,487, 707,433 and 859,129 are referred to.
Patent GB-1467747-A (GB)
Title: Ballast weight assembly for agricultural vehicle
IPC: B62D49/08
Filed: 1975-09-12
Abstract: 1467747 Tractor ballast weights DEERE & CO 12 Sept 1975 [13 Sept 1974] 37619/75 Heading B7H [Also in Division A1] The ballast weight assembly of an agricultural tractor comprises plate-like weights 14 which are hung on a transverse bar 10 and are provided with substantially vertical semi-cylindrical flutes 27 such that opposed flutes 27 in adjacent weights form bores 32, the bore 32 between one pair of adjacent weights being for reception, in use, of a hitch pin 28 for coupling engagement with the coupling eye of a vehicle tow bar, the ballast weight assembly further comprising guides 30, 31 for assisting guiding, in use, of the coupling eye to its correct transverse position prior to insertion of the hitch pin. The assembled weights 14 are transversely located on the bar 10 by a centering pin 16 locating between two adjacent weights 14 and engaging in a bore 12 of the transverse bar 10. The transverse bar 10 of the ballast weight assembly may be used without the weights 14, in which case it may be coupled with an implement hitch bar by means of a hitch pin inserted in the bore 12. The guides 30, 31 may each take the form of a tapered nosing integrally formed on a ballast weight or of a separate detachably mounted member.
Patent GB-963664-A (GB)
Title: Improvements in or relating to resiliently extensible chains
IPC: A44C5/08
Filed: 1962-10-05
Abstract: 963,664. Bracelets. E. A. PENTTINEN. Oct. 5, 1962 [April 10, 1962], No. 37705/62. Heading A3H. An extensible bracelet comprises a series of telescoping hollow links each link having a smaller portion 1 and a larger portion 2 such that the smaller portion of one link is slidable within the larger portion of another link, with a spring extending through and projecting from two oppositely disposed lateral slots 4 in the smaller portion of each link, the larger portion of each link having inwardly extending abutments 5 for engaging the projecting parts of the spring and the smaller portion of each link having an end wall against which the spring presses. The spring may comprise a strip in the form of a number of coils which are coplanar when under tension. The external corners of the links may be rounded. The links may be curved.
Patent GB-783194-A (GB)
Title: Improvements relating to the preservation of fruit and other products
Inventor: LLOYD ARTHUR JOHN
IPC: B65D81/28
Filed: 1954-12-31
Abstract: Diphenyl, generally of particle size 0.0001-0.004 inch, is dispersed in an aqueous non-toxic medium of sufficient viscosity to maintain the diphenyl in a dispersed state.  Substances which increase the viscosity of water sufficiently to disperse diphenyl can be water-soluble high molecular weight substances which are not liable to attack by fungi; thus polymeric materials containing carboxyl groups or hydroxyl groups, e.g. sodium and potassium salts of carboxy methyl-cellulose, polymers and copolymers of acrylic maleic and methacrylic acids, sodium salt of a copolymer of styrene and maleic anhydride, polystyrene and polyvinyl alcohol.  Protective colloids, such as polystyrene, may be present.ALSO:Finely-divided diphenyl is dispersed in an aqueous solution of the sodium or potassium salt of carboxymethyl cellulose.ALSO:Wrappers for agricultural products, e.g. oranges, grapefruits, tangerines and lemons and tomatoes, and linings for boxes in which such products are to be packed, are made by impregnating paper with a preparation of finely-divided diphenyl in an aqueous medium sufficiently viscous to maintain the particles of diphenyl in dispersed condition.  The dispersion may be applied to the paper discontinuously, i.e. in the form of "dots".  The aqueous medium may be rendered sufficiently viscous by incorporation of sodium carboxymethyl cellulose, polyvinyl alcohol, or a p styrene-maleic anhydride copolymer; a protective colloid, e.g. polystyrene in aqueous dispersion may also be incorporated.